I've had a really intense itch lately for music fitting this very overbearingly digital sound, like something straight out of the speakers of an Amiga in a dark room made of concrete and aluminum. It's hard to describe past what I've set as the title, but hopefully you'll see what I'm looking for with a few examples.

reading your descriptions i was thinking of Kangding Ray or Xoma or something..but after listening to the examples, I was not. Nevertheless,

You're actually right on the money! As are the other guys, as well. Most of the examples weren't necessarily precisely what I was looking for, just the closest thing I have. It's a bit of a broad category, all things considered.